apollo.io
Apollo.io is a sales intelligence and engagement platform for searching and enriching company and contact data and managing go-to-market workflows. It also provides tools for CRM records, sequences, conversations, calls, tasks, and analytics.
Apollo.io exposes a REST API at `https://api.apollo.io/api/v1`, a remote MCP server at `https://mcp.apollo.io/mcp`, and an `apollo` CLI; the API supports Apollo API keys or partner OAuth, while MCP and CLI use OAuth.
- Apollo MCP serverdetected
- Apollo APIdiscovered
- Apollo CLIdiscovered
In Apollo, go to Settings > Integrations > API Keys or open the Apollo developer dashboard. Click API Keys > Create new key, choose the endpoint permissions for the key (or enable Set as master key for full access), then copy the key and store it securely. Access depends on your Apollo plan.
Point your MCP client at the server URL and approve access in the browser. The server supports OAuth Dynamic Client Registration (RFC 7591), so the client registers itself automatically — no developer-portal app, client_id, or client_secret to create.
$ apollo auth loginAcquired by the CLI — running apollo auth login opens the auth flow and stores the credential.
conventions · 1/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✓https://apollo.io/llms.txt
- API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing